808
FNCA52 TJSJ 240801
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
401 AM AST SAT JAN 24 2026
DISCUSSION
ABOVE NORMAL MOISTURE WILL PERSIST ACROSS THE ISLANDS TODAY, WITH
PASSING SHOWERS EXPECTED ALMOST EVERYWHERE. WINDS REMAIN
MODERATE, OUT OF THE EAST AT SPEEDS JUST ABOVE 15 MPH. THEREFORE,
THE RISK OF FIRE WEATHER IS EXPECTED TO BE LOW TODAY.
PRZ014-250815-
SOUTHEAST COASTAL PLAINS-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 30
TEMP (24H TREND) 87 (+3) 71 (-2) 88
RH % (24H TREND) 62 (-5) 91 (+1) 53
WIND 20FT/EARLY(MPH) E 17 G22 E 11 E 19 G24
WIND 20FT/LATE(MPH) E 17 G22 E 11 E 19 G24
MIXING HGT(FT-AGL/MSL)4370 5330
TRANSPORT WND (MPH) E 16 E 20
VENT RATE (KT-FT) 61180 90610
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-250815-
SOUTHERN HILLS-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 30
TEMP (24H TREND) 82 (+3) 68 (-3) 84
RH % (24H TREND) 69 (-5) 96 (+5) 58
WIND 20FT/EARLY(MPH) E 12 E 11 E 14
WIND 20FT/LATE(MPH) E 12 E 11 E 14
MIXING HGT(FT-AGL/MSL)4720 6140
TRANSPORT WND (MPH) E 15 E 18
VENT RATE (KT-FT) 61360 98240
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-250815-
NORTH COASTAL PLAINS-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 30
TEMP (24H TREND) 84 (+1) 70 (-2) 87
RH % (24H TREND) 70 (-3) 100 (+4) 58
WIND 20FT/EARLY(MPH) E 17 G19 E 16 G18 E 19 G22
WIND 20FT/LATE(MPH) E 17 G19 E 16 G18 E 19 G22
MIXING HGT(FT-AGL/MSL)4010 5040
TRANSPORT WND (MPH) E 17 E 20
VENT RATE (KT-FT) 60150 85680
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-250815-
NORTHERN HILLS-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 60 20
TEMP (24H TREND) 83 (+1) 68 (-2) 85
RH % (24H TREND) 70 (-1) 99 (+3) 56
WIND 20FT/EARLY(MPH) E 14 E 13 E 18
WIND 20FT/LATE(MPH) E 14 E 13 E 18
MIXING HGT(FT-AGL/MSL)4490 6190
TRANSPORT WND (MPH) E 14 E 17
VENT RATE (KT-FT) 53880 92850
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-250815-
WEST COAST-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 60 20
TEMP (24H TREND) 86 (+1) 69 (-1) 88
RH % (24H TREND) 68 (-1) 98 (+2) 56
WIND 20FT/EARLY(MPH) E 12 E 16 E 14
WIND 20FT/LATE(MPH) E 12 E 16 E 14
MIXING HGT(FT-AGL/MSL)4520 5300
TRANSPORT WND (MPH) E 9 E 12
VENT RATE (KT-FT) 36160 53000
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-250815-
EASTERN INTERIOR-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 60 30
TEMP (24H TREND) 83 (+2) 69 (-2) 84
RH % (24H TREND) 73 (-3) 97 (+1) 62
WIND 20FT/EARLY(MPH) E 12 E 12 E 14
WIND 20FT/LATE(MPH) E 12 E 12 E 14
MIXING HGT(FT-AGL/MSL)3730 5510
TRANSPORT WND (MPH) E 14 E 18
VENT RATE (KT-FT) 44760 88160
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-250815-
LUQUILLO MOUNTAIN RANGE-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 60 30
TEMP (24H TREND) 78 (+3) 67 (-3) 79
RH % (24H TREND) 78 (-7) 100 (+1) 70
WIND 20FT/EARLY(MPH) E 11 E 9 E 12
WIND 20FT/LATE(MPH) E 11 E 9 E 12
MIXING HGT(FT-AGL/MSL)3110 4690
TRANSPORT WND (MPH) E 16 E 18
VENT RATE (KT-FT) 43540 75040
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-250815-
CENTRAL MOUNTAIN RANGE-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 70 50 20
TEMP (24H TREND) 81 (+3) 65 (-3) 84
RH % (24H TREND) 69 (-6) 98 (+3) 57
WIND 20FT/EARLY(MPH) E 9 E 11 E 11
WIND 20FT/LATE(MPH) E 9 E 11 E 11
MIXING HGT(FT-AGL/MSL)4920 7320
TRANSPORT WND (MPH) E 12 E 13
VENT RATE (KT-FT) 49200 80520
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-250815-
CAYEY MOUNTAIN RANGE-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER MCLDY MCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 60 30
TEMP (24H TREND) 78 (+2) 67 (-3) 78
RH % (24H TREND) 80 (-3) 99 (+1) 70
WIND 20FT/EARLY(MPH) E 10 E 9 E 13
WIND 20FT/LATE(MPH) E 10 E 9 E 13
MIXING HGT(FT-AGL/MSL)3380 5020
TRANSPORT WND (MPH) E 16 E 20
VENT RATE (KT-FT) 47320 85340
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-250815-
VIEQUES-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 20
TEMP (24H TREND) 85 (+1) 73 (-1) 85
RH % (24H TREND) 63 (-4) 89 (-4) 57
WIND 20FT/EARLY(MPH) E 16 G19 E 16 G20 E 17 G21
WIND 20FT/LATE(MPH) E 16 G19 E 16 G20 E 17 G21
MIXING HGT(FT-AGL/MSL)2950 3670
TRANSPORT WND (MPH) E 18 E 21
VENT RATE (KT-FT) 47200 66060
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-250815-
CULEBRA-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 20
TEMP (24H TREND) 84 (+1) 74 (-1) 84
RH % (24H TREND) 66 (-5) 91 (-1) 61
WIND 20FT/EARLY(MPH) E 14 G19 E 16 G20 E 18 G22
WIND 20FT/LATE(MPH) E 14 G19 E 16 G20 E 18 G22
MIXING HGT(FT-AGL/MSL)2920 3670
TRANSPORT WND (MPH) E 18 E 23
VENT RATE (KT-FT) 46720 73400
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-250815-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 10
TEMP (24H TREND) 87 (+2) 70 (-2) 89
RH % (24H TREND) 63 (-2) 93 (+5) 53
WIND 20FT/EARLY(MPH) E 18 G23 E 12 E 21 G27
WIND 20FT/LATE(MPH) E 18 G23 E 12 E 21 G27
MIXING HGT(FT-AGL/MSL)4860 5320
TRANSPORT WND (MPH) E 15 E 18
VENT RATE (KT-FT) 63180 85120
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-250815-
SAINT THOMAS AND SAINT JOHN-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 60 50 20
TEMP (24H TREND) 83 (+2) 69 (-5) 82
RH % (24H TREND) 73 (-3) 100 (+4) 66
WIND 20FT/EARLY(MPH) E 16 G19 E 17 G21 E 18 G22
WIND 20FT/LATE(MPH) E 16 G19 E 17 G21 E 18 G22
MIXING HGT(FT-AGL/MSL)3140 4110
TRANSPORT WND (MPH) E 20 E 23
VENT RATE (KT-FT) 53380 82200
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-250815-
ST CROIX-
401 AM AST SAT JAN 24 2026
TODAY TONIGHT SUN
CLOUD COVER PCLDY PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 20
TEMP (24H TREND) 84 (+1) 72 (-4) 84
RH % (24H TREND) 69 (-3) 91 (+1) 62
WIND 20FT/EARLY(MPH) E 16 G19 E 16 G19 E 17 G21
WIND 20FT/LATE(MPH) E 16 G19 E 16 G19 E 17 G21
MIXING HGT(FT-AGL/MSL)3460 4450
TRANSPORT WND (MPH) E 21 E 24
VENT RATE (KT-FT) 62280 93450
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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